Structure and Wettability Engineering of Polycrystalline Diamond Films Treated by Thermally Oxidation, Second Growth and Surface Termination
Linfeng Wan1,2 , Caoyuan Mu1,2 , Yaofeng Liu1,2 , Shaoheng Cheng1,2 , Qiliang Wang1,2* , Liuan Li1,2* , Hongdong Li1,2* , and Guangtian Zou1,2
1 State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China2 Shenzhen Research Institute, Jilin University, Shenzhen 518057, China
Abstract ：High-quality polycrystalline diamond films with dominated (100)-oriented grains are realized by combining the thermally oxidation and the homogeneous second growth processes. Moreover, we investigate the wettability property of the polycrystalline diamonds in various stages. Different surface structures (with various grain sizes, voids, and orientations, etc.) and terminations (hydrogen or oxygen) have significant effects on the wettability of polycrystalline diamond films. The wettability is further closely related to the polarity of solutions. By measuring the contact angle and calculating the dispersion and polarity components, we estimate the surface energy of polycrystalline diamond films, and explore the factors affecting the surface energy. The modulations in growth quality and wettability property of polycrystalline diamond films provide valuable data for development of diamond-based multiple devices in practical applications.
收稿日期: 2021-11-02
出版日期: 2022-03-01
引用本文:
. [J]. 中国物理快报, 2022, 39(3): 36801-.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/39/3/036801
或
https://cpl.iphy.ac.cn/CN/Y2022/V39/I3/36801
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2022, Vol. 39 
